Method and system for application-aware scheduling service

ABSTRACT

A method, a network device, and a non-transitory storage medium are described in which an application-aware scheduling service is provided. The application-aware scheduling service may be configured with bandwidth values and usability values for traffic of applications. The application-aware scheduling service may manage air interface scheduling based on the bandwidth and usability values. The application-aware scheduling service may perform packet inspection to identify an application relating to traffic. The application-aware scheduling service may be configured with a maximum bandwidth for traffic of applications.

BACKGROUND

Development and design of radio access networks (RANs), core networks,and application service networks, present certain challenges from anetwork-side perspective and an end device perspective. For example,depending on the configurations from both network-side and enddevice-side perspectives, such configurations may impact variousperformance metrics, such as accessibility, congestion, latency,throughput, error rate, or other metric. Accordingly, a need exists toovercome these challenges.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a diagram illustrating an exemplary environment in which anexemplary embodiment of an application-aware scheduling service may beimplemented;

FIG. 2 is a diagram illustrating another exemplary environment in whichan exemplary embodiment of the application-aware scheduling service maybe implemented according to an exemplary scenario;

FIG. 3A is a diagram illustrating an exemplary configuration of anexemplary embodiment of the application-aware scheduling service;

FIG. 3B is a diagram illustrating another exemplary process of anexemplary embodiment of the application-aware scheduling service;

FIG. 3C is a diagram illustrating yet another exemplary process of anexemplary embodiment of the application-aware scheduling service;

FIG. 4 is a diagram illustrating exemplary components of a device thatmay correspond to one or more of the devices illustrated and describedherein;

FIG. 5 is a flow diagram illustrating an exemplary process of anexemplary embodiment of the application-aware scheduling service;

FIG. 6 is a flow diagram illustrating another exemplary process of anexemplary embodiment of the application-aware scheduling service; and

FIG. 7 is a flow diagram illustrating yet another exemplary process ofan exemplary embodiment of the application-aware scheduling service.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

The following detailed description refers to the accompanying drawings.The same reference numbers in different drawings may identify the sameor similar elements. Also, the following detailed description does notlimit the invention.

In a wireless network, such as an Internet Protocol wireless network,managing and providing quality of service (QoS) may be fundamental forsatisfying a target grade of service for users and end devices. Forexample, in Fourth Generation (4G) networks, a Quality of Service (QoS)Class Identifier (QCI) is a mechanism that may be used to ensure bearertraffic is allocated appropriate QoS. For example, different bearertraffic may be assigned different QCI values. In Fifth Generation (5G)networks, QoS may be applied on a per flow basis based on 5G QoSIdentifiers (5QI).

A part of user traffic in the wireless network may include over-the-top(OTT) application services, such as OTT voice, OTT video telephony, OTTvideo streaming, OTT instant messaging (IM), or other type ofapplication service. Typically, the OTT service is provided via theInternet and may be subject to “best effort” delivery. Currently,however, there is not a mechanism to provide quality differentiationbetween different OTT applications for the same user or across differentusers. Consequently, some users may experience, and/or an OTTapplication may be subject to, unsatisfactory QoS and poor performance.As such, there are no mechanisms to enhance scheduling at a RAN deviceto improve quality differentiation among various applications.

According to exemplary embodiments, an application-aware schedulingservice for a radio access network is provided. According to anexemplary embodiment, a wireless station of the radio access network mayprovide the application-aware scheduling service. According to variousexemplary embodiments, the application-aware scheduling service maypertain to OTT applications, non-OTT applications, or a combination ofOTT applications and non-OTT applications (referred to herein as“applications”).

According to an exemplary embodiment, the application-aware schedulingservice may allocate, for each user connected to the wireless station, acapacity of the wireless station. According to an exemplary embodiment,the capacity may be a fixed capacity regardless of the number ofapplications used by the user. According to an exemplary embodiment, theallocated capacity value for each user may be different.

According to an exemplary embodiment, the capacity of the wirelessstation may be the capacity of a sector of the wireless station.According to other exemplary embodiments, the capacity of the wirelessstation may be the capacity of a non-sector of the wireless station(e.g., a cell, a sub-sector, an antenna, etc.). According to anexemplary embodiment, the wireless station may perform packet inspection(e.g., deep packet inspection (DPI), deep content inspection, or anothertype of packet inspection) to identify an application.

According to another exemplary embodiment, the application-awarescheduling service may allocate a fixed capacity for the sameapplication across all users. For example, the fixed capacity may be aportion of the total capacity of the wireless station.

According to yet another exemplary embodiment, the application-awarescheduling service may include a combination of the various embodiments.For example, the application-aware scheduling service may allocate afixed capacity among users regardless of the number of applications, andthe fixed capacity may be different between users. Also, theapplication-aware scheduling service may allocate a remaining portion ofthe total capacity among multiple applications. According to anexemplary embodiment, the applications associated with the users of thefixed capacity will not count towards or be applicable to the remainingportion of the total capacity, as provided by the application-awarescheduling service.

In view of the foregoing, the application-aware scheduling service mayprovide a desired and configurable grade of service for each applicationwithout differentiating one user from another. Additionally, theapplication-aware scheduling service may provide a desired andconfigurable grade of service for a given application for a given user.In this way, the application-aware scheduling service may prevent orminimize an application that may use a significant amount of networkresources from degrading the performance of another OTT application.

FIG. 1 is a diagram illustrating an exemplary environment 100 in whichan exemplary embodiment of the application-aware scheduling service maybe implemented. As illustrated, environment 100 may include an accessnetwork 105 and a core network 150. Access network 105 may includeaccess devices 110, and core network 150 may include core devices 155.Environment 100 may further include end devices 199.

The number, type, and arrangement of networks illustrated in environment100 are exemplary. Additionally, or alternatively, other networks notillustrated in FIG. 1 may be included in environment 100, such as anxHaul network (e.g., a fronthaul network, a mid-haul network, a backhaulnetwork, etc.), an application layer network, or another type ofnetwork.

The number, the type, and the arrangement of network devices in accessnetwork 105, and core network 150, as illustrated and described, areexemplary. The number of end devices 199 is exemplary. A network devicemay be implemented according to one or multiple network architectures(e.g., a client device, a server device, a peer device, a proxy device,a cloud device, a virtualized function, and/or another type of networkarchitecture (e.g., Software Defined Networking (SDN), virtual, logical,network slicing, etc.)). Additionally, a network device may beimplemented according to various computing architectures, such ascentralized, distributed, cloud (e.g., elastic, public, private, etc.),edge, fog, and/or another type of computing architecture.

Environment 100 includes communication links between the networks,between network devices, and between end device 199 and network devices.Environment 100 may be implemented to include wired, optical, and/orwireless communication links among the network devices and the networksillustrated. A communicative connection via a communication link may bedirect or indirect. For example, an indirect communicative connectionmay involve an intermediary device and/or an intermediary network notillustrated in FIG. 1. A direct communicative connection may not involvean intermediary device and/or an intermediary network. The number andthe arrangement of communication links illustrated in environment 100are exemplary.

Environment 100 may include various planes of communication including,for example, a control plane, a user plane, a service plane, and/or anetwork management plane. Environment 100 may include other types ofplanes of communication. According to various exemplary implementations,the interface of the network device may be a service-based interface, areference point-based interface, an Open Radio Access Network (O-RAN)interface, a 5G interface, or some other type of interface.

Access network 105 may include one or multiple networks of one ormultiple types and technologies. For example, access network 105 may beimplemented to include a next generation RAN (e.g., a Fifth Generation(5G) RAN), a future generation RAN (e.g., a Sixth Generation (6G) RAN,etc.), a Fourth Generation (4G) RAN (e.g., an Evolved UMTS TerrestrialRadio Access Network (E-UTRAN) of a Long Term Evolution (LTE) network),a 4.5G RAN (e.g., an E-UTRAN of an LTE-Advanced (LTE-A) network), an RANof an LTE-A Pro network, and/or another type of RAN (e.g., a legacyThird Generation (3G) RAN, etc.). Access network 105 may further includeother types of wireless networks, such as a Wi-Fi network, a WorldwideInteroperability for Microwave Access (WiMAX) network, a local areanetwork (LAN), a Bluetooth network, a personal area network (PAN), aCitizens Broadband Radio System (CBRS) network, or another type ofwireless network (e.g., an O-RAN Reference Architecture, a virtualizedRAN (vRAN), a self-organizing network (SON), etc.). Access network 105may include a wired network, an optical network, or another type ofnetwork that may provide communication with core network 150, forexample.

Access network 105 may include different and multiple functionalsplitting, such as options 1, 2, 3, 4, 5, 6, 7, or 8 that relate tocombinations of access network 105 and core network 150 including an EPCnetwork and/or a NG core (NGC) network, or the splitting of the variouslayers (e.g., physical layer, Media Access Control (MAC) layer, RadioLink Control (RLC) layer, and Packet Data Convergence Protocol (PDCP)layer), plane splitting (e.g., user plane, control plane, etc.), acentralized unit (CU) and a distributed unit (DU), interface splitting(e.g., F1-U, F1-C, E1, Xn-C, Xn-U, X2-C, Common Public Radio Interface(CPRI), etc.) as well as other types of services, such as dualconnectivity (DC) or higher (e.g., a secondary cell group (SCG) splitbearer service, a MCG split bearer, an SCG bearer service, E-UTRA-NR(EN-DC), NR-E-UTRA-DC (NE-DC), NG RAN E-UTRA-NR DC (NGEN-DC), or anothertype of DC (e.g., multi-radio access technology (RAT) (MR-DC),single-RAT (SR-DC), etc.), carrier aggregation (CA) (e.g., intra-band,inter-band, contiguous, non-contiguous, etc.), network slicing,coordinated multipoint (CoMP), various duplex schemes (e.g., frequencydivision duplex (FDD), time division duplex (TDD), half-duplex FDD(H-FDD), etc.), and/or another type of connectivity service (e.g., NSA)(e.g., non-standalone NR, non-standalone E-UTRA, etc.), SA (e.g.,standalone NR, standalone E-UTRA, etc.), etc.).

According to various exemplary embodiments, access network 105 may beimplemented to include various architectures of wireless service, suchas, for example, macrocell, microcell, femtocell, picocell, metrocell,NR cell, LTE cell, non-cell, or another type of architecture.Additionally, according to various exemplary embodiments, access network105 may be implemented according to various wireless technologies (e.g.,RATs, etc.), wireless standards, wireless frequencies/bands/carriers(e.g., centimeter (cm) wave, millimeter (mm) wave, below 6 GHz, above 6GHz, licensed radio spectrum, unlicensed radio spectrum, NR low band, NRmid-band, NR high band, etc.), and/or other attributes of radiocommunication.

Depending on the implementation, access network 105 may include one ormultiple types of network devices, such as access devices 110. Forexample, access devices 110 may include a next generation Node B (gNB),an evolved Node B (eNB), an evolved Long Term Evolution (eLTE) eNB, aradio network controller (RNC), a remote radio head (RRH), a radio unit(RU), a baseband unit (BBU), a CU, a DU, a small cell node (e.g., apicocell device, a femtocell device, a microcell device, a home eNB,etc.), open network devices (e.g., O-RAN Centralized Unit (O-CU), O-RANDistributed Unit (O-DU), O-RAN next generation Node B (O-gNB), O-RANevolved Node B (O-eNB, etc.), a future generation wireless access device(e.g., a 6G wireless station), another type of wireless node (e.g., aWiMax device, a hotspot device, a Wi-Fi device, in-building distributedantenna systems (iDAS), outdoor DAS (oDAS), 5G ultra-wide band (UWB)nodes, Citizens Broadcast Radio Service (CBRS) nodes, Licensed AssistedAccess (LAA) nodes, C-band nodes, etc.) that provides a wireless accessservice. According to some exemplary implementations, access devices 110may include a combined functionality of multiple RATs (e.g., 4G and 5Gfunctionality, etc.). Access devices 110 may be an indoor device or anoutdoor device.

According to various exemplary implementations, access device 110 mayinclude one or multiple sectors or antennas. The antenna may beimplemented according to various configurations, such as single inputsingle output (SISO), single input multiple output (SIMO), multipleinput single output (MISO), multiple input multiple output (MIMO),massive MIMO, three dimensional (3D) beamforming (also known asfull-dimensional MIMO), 2D beamforming, antenna spacing, tilt (relativeto the ground), radiation pattern, directivity, elevation, planararrays, and so forth.

According to an exemplary embodiment, one or multiple types of accessdevices 110 may include logic that provides the application-awarescheduling service, as described herein.

Core network 150 may include one or multiple networks of one or multipletypes and technologies. According to an exemplary embodiment, corenetwork 150 includes a complementary network of access network 105. Forexample, core network 150 may be implemented to include a 5GC network(also known as next generation core (NGC) network), a future generationcore network (e.g., a 6G core network, etc.), an EPC of an LTE network,an LTE-Advanced (LTE-A) network, and/or an LTE-A Pro network. Corenetwork 150 may include a legacy core network.

Depending on the implementation, core network 150 may include varioustypes of network devices, such as core devices 155. For example, coredevices 155 may include a user plane function (UPF), a Non-3GPPInterworking Function (N3IWF), an access and management mobilityfunction (AMF), a session management function (SMF), a unified datamanagement (UDM) device, a unified data repository (UDR) device, anauthentication server function (AUSF), a network slice selectionfunction (NSSF), a network repository function (NRF), a policy controlfunction (PCF), a binding support function (BSF), a network dataanalytics function (NWDAF), a network exposure function (NEF), alifecycle management (LCM) device, an application function (AF), amobility management entity (MME), a packet gateway (PGW), an enhancedpacket data gateway (ePDG), a serving gateway (SGW), a home agent (HA),a General Packet Radio Service (GPRS) support node (GGSN), a homesubscriber server (HSS), an authentication, authorization, andaccounting (AAA) server, a policy and charging rules function (PCRF), apolicy and charging enforcement function (PCEF), and/or a chargingsystem (CS). According to other exemplary implementations, core devices155 may include additional, different, and/or fewer network devices thanthose described. For example, core devices 155 may include anon-standard or a proprietary network device, and/or another type ofnetwork device that may be well-known but not particularly mentionedherein. Core devices 155 may also include a network device that providesa multi-RAT functionality (e.g., 4G and 5G), such as an SMF with PGWcontrol plane functionality (e.g., SMF+PGW-C), a UPF with PGW user planefunctionality (e.g., UPF+PGW-U), a service capability exposure function(SCEF) with a NEF (SCEF+NEF), and/or other combined nodes (e.g., an HSSwith a UDM and/or UDR, an MME with an AMF, etc.). Access network 105and/or core network 150 may include a public network, a private network,and/or an ad hoc network.

End devices 199 may include devices that have computational and wirelesscommunicative capabilities. Depending on the implementation, end device199 may be a mobile device, a portable device, a stationary device, adevice operated by a user (e.g., user equipment (UE), etc.), or a devicenot operated by a user (e.g., an Internet of Things (IoT) device, etc.).For example, end device 199 may be implemented as a smartphone, a mobilephone, a personal digital assistant, a tablet, a netbook, a phablet, awearable device (e.g., a watch, glasses, etc.), a computer, a device ina vehicle, a gaming device, a music device, an IoT device, or other typeof wireless device. End device 199 may be configured to execute varioustypes of software (e.g., applications, programs, etc.). The number andthe types of software may vary among end devices 199. According to anexemplary embodiment, end devices 199 may include one or multipleapplications. The application(s) may include OTT applications and/ornon-OTT applications. An OTT application (or service) may be anapplication or a service received over the Internet that may not beprovided directly by the Internet Service Provider (ISP) of end device199. Examples of an OTT application may be YouTube®, Hulu®, Netflix®,Skype®, Facetime®, and so forth.

FIG. 2 is a diagram illustrating another exemplary environment 200 inwhich an exemplary embodiment of the application-aware schedulingservice may be implemented according to an exemplary scenario. Asillustrated, access device 110 (e.g., an eNB 205) provides wirelessaccess to end devices 199-1 through 199-9 (referred to individually orgenerally as end device 199). eNB 205 includes an application-awarescheduler 210 that provides the application-aware scheduling service, asdescribed herein. According to other exemplary embodiments andscenarios, a different access device 110 (e.g., a gNB, a Wi-Fi device,etc.) may include the application-aware service, as described herein.

FIG. 2 also illustrates a coverage area (e.g., cell 215) of eNB 205 andsectors 220-1 through 220-3 (referred to as sectors 220, and generallyor individually as sector 220) coverage areas of eNB 205. According toother exemplary embodiments, access device 110 may not include sectors220, may include a different number of sectors 220, or may include adifferent arrangement of sectors 220. According to still other exemplaryembodiments, eNB 205 or another type of access device 110 may provideradio coverage according to other configurations (e.g., no sectors,3D-MIMO, etc.), as described herein. The number of end devices 199 areexemplary.

According to the exemplary scenario, assume that end devices 199 areconnected to eNB 205 and traffic may be flowing in the uplink and/or thedownlink directions between end devices 199 and eNB 205. According to anexemplary embodiment, the application-aware scheduling service may bebased on a capacity of eNB 205. For example, the capacity may be thecapacity of sector 220. According to other exemplary scenarios, thecapacity may be associated with another coverage area provided by eNB205 (e.g., an antenna, an array of antennas, all of eNB 205, a portionof eNB 205, a portion of a sector 220, etc.).

According to an exemplary embodiment, the application-aware schedulingservice may manage scheduling based on a maximum bandwidth assigned toeach end device 199, an application bandwidth assigned to anapplication, and a usability parameter. According to an exemplaryembodiment, eNB 205 or another type of access device 110 may beconfigured or provisioned with application-aware scheduling service datathat may be used by application-aware scheduler 210. Theapplication-aware scheduling service data may be stored in a database orother type of data storage structure. An exemplary configuration 300 isillustrated in FIGS. 3A-3C.

As illustrated in FIG. 3A, configuration 300 includes a bandwidth 305.For example, bandwidth 305 may be a total bandwidth of sector 220 oranother configured capacity associated with eNB 205, as describedherein. For purposes of description, assume that configuration 300relates to sector 220-1 that include end devices 199-1, 199-2, and199-3. As further illustrated, each end device 199 may be assigned amaximum bandwidth 310, such as bandwidth 310-1 for end device 199-1,bandwidth 310-2 for end device 199-2, and bandwidth 310-3 for end device199-3 (collectively referred to as bandwidths 310, or individually orgenerally as bandwidth 310). According to various exemplary embodiments,bandwidth 310 may be the same and/or different among end devices 199-1,199-2, and 199-3. As an example, in 4G RAN, maximum bandwidth 310 maycorrespond to a UE-Aggregated Maximum Bit Rate (UE-AMBR) value whichrelates to only non-Guaranteed Bit Rate (GBR) bearers, or an AccessPoint Name (APN)-AMBR value which relates to only non-GBR bearers andall PDN connections of the same APN. According to other examples,maximum bandwidth may not correspond to the UE-AMBR or the APN-AMBR, andmay relate to GBR bearers or a combination of non-GBR bearers and GBRbearers, to an access device 110 of a 5G RAN, and so forth.

Each of end devices 199 may include a set of applications, such asapplications 315-1 for end device 199-1, applications 315-2 for enddevice 199-2, and applications 315-3 for end device 199-3. For example,end device 199-1 may include applications 1 thru N, end device 199-2 mayinclude applications 1 thru M, and end device 199-3 may includeapplications 1 thru X. The number of applications is exemplary and mayvary among end devices 199, as described herein.

As illustrated, configuration 300 may include an application bandwidth320 for each application or an application bandwidth 320 for a portionof applications included in end device 199. Application bandwidth 320may indicate a bandwidth value that supports a grade of service for theapplication. According to various exemplary implementations, thebandwidth value may be a single bandwidth value (e.g., 1Megabytes/second, or some other bandwidth value) or a range of bandwidthvalues (e.g., 3 Megabytes/second-3.2 Megabytes/second, or some otherrange of bandwidth values). According to various exemplaryimplementations, the grade of service may relate to an optimal grade ofservice, a satisfactory grade of service, a minimum grade of service, oranother configured tier of service for the application.

Also, configuration 300 may include a usability flag 325 for eachapplication bandwidth 320 or a portion of application bandwidth 320.Usability flag 325 may indicate whether the correlated application maywork despite application bandwidth 320 not being provided. As anexample, a web browsing application or an email application may operateand provide a web browsing service or an email service when a bandwidthis provided that is below application bandwidth 320. As another example,a video streaming service or an audio/video conferencing service may not(effectively) perform or provide a meaningful user experience when abandwidth is provided that is below application bandwidth 320. Asillustrated in FIG. 3A for end device 199-1, for example, application 1may be assigned an application bandwidth 320-1 and a usability flag325-1; application 2 may be assigned an application bandwidth 320-2 anda usability flag 325-2; and so forth.

According to an exemplary embodiment, the application-aware schedulingservice may perform packet inspection of a packet and identify anapplication based on the packet inspection. The application-awarescheduling service may perform scheduling based on the identification ofthe application, as described herein. The scheduling may include thetransmission of packets, the receipt of packets, which end device 199 isallocated radio resources, how much radio resources are allocated, ratecontrol, and so forth.

According to various exemplary embodiments, eNB 205 (or other type ofaccess device 110) may perform DPI, deep content inspection, or anothertype of packet inspection to identify the application. According tovarious exemplary embodiments, the identification of the application mayrelate to a category of the application or service (e.g., real-time,non-real-time, augmented reality (AR), critical, IoT, email, browser, anOTT application, a non-OTT application, etc.) or a particularapplication (e.g., a Netflix® application, etc.). According to anexemplary embodiment, the packet inspection may include identifying anapplication protocol, an application source port number, an applicationdestination port number, a transport protocol (e.g., TransmissionControl Protocol (TCP), User Datagram Protocol (UDP), etc.), a source IPaddress or range of IP addresses, a destination IP address or range ofIP addresses, and/or other types of information included in a packet ora portion of the packet (e.g., a header field, a payload field, atrailer field, etc.).

The application-aware scheduling service may identify other informationrelating to end device 199, such as unique identifier (e.g., a MediaAccess Control (MAC) address, an International Mobile SubscriberIdentify (IMSI), an IP address, an International Mobile EquipmentIdentity (IMEI), a 5G-Subscription Permanent Identifier (SUPI) or othertype of identifier that may identify end device 199).

FIG. 3A illustrates an exemplary configuration of the application-awarescheduling service, however, according to other embodiments,configuration 300 may include additional parameters, fewer parameters,and/or different parameters than those illustrated in FIG. 3 anddescribed herein.

FIG. 3B is a diagram illustrating another exemplary configuration 350 ofan exemplary embodiment of the application-aware scheduling service.Referring to FIG. 3B, a capacity 355 of eNB 205 (or other access device110) may be divided among applications. According to some exemplaryembodiments, capacity 355 may be a total capacity of eNB 205. Accordingto an exemplary embodiment, the applications may be assigned bandwidthsacross all end devices 199 in which those applications may be preventedfrom consuming more than their assigned bandwidths. For example,application_1 may be assigned a bandwidth 360-1, application_2 may beassigned a bandwidth 360-2, and application_3 may be assigned abandwidth 360-3.

FIG. 3C is a diagram illustrating yet another exemplary configuration375 of an exemplary embodiment of the application-aware schedulingservice. Referring to FIG. 3C, a capacity 380 of eNB 205 (or otheraccess device 110) may be divided among applications. According to someexemplary embodiments, capacity 380 may be a total capacity of eNB 205.According to an exemplary embodiment, only some of the applications maybe assigned bandwidths across all end devices 199 in which thoseapplications may be prevented from consuming more than their assignedbandwidths. For example, application_1 may be assigned a bandwidth360-1, application_2 may be assigned a bandwidth 360-2, andapplication_3 may be assigned a bandwidth 360-3 that preventapplication_1, application_2, and application_3 from consuming more thantheir assigned bandwidth. According to an exemplary embodiment,applications 4-T may not be assigned a bandwidth or may be assigned abandwidth that may not prevent applications 4-T from consuming more thantheir assigned bandwidth.

According to some exemplary embodiments, the configuration of theassigned bandwidths may total more than the allocated capacity 355 ofeNB 205. For example, referring to FIG. 3B, bandwidth 360-1+bandwidth360-2+bandwidth 360-3>100% of capacity 355. Alternatively, referring toFIG. 3C, bandwidth 360-1+bandwidth 360-2+bandwidth 360-3+bandwidths forapplications 4 through T>100% of capacity 380. According to suchembodiments, when all applications with assigned bandwidths are activeat the same time, the application-aware scheduling service may pro-ratethe bandwidth according to a weight of the application's share so thatthe bandwidth of the applications does not exceed 100% capacity.Additionally, or alternatively, the application-aware scheduling servicemy drop packets and/or reduce the bandwidth of an application if theusability flag permits.

FIG. 4 is a diagram illustrating exemplary components of a device 400that may be included in one or more of the devices described herein. Forexample, device 400 may correspond to access devices 110, core devices155, end devices 199, and other types of network devices or logic, asdescribed herein. As illustrated in FIG. 4, device 400 includes a bus405, a processor 410, a memory/storage 415 that stores software 420, acommunication interface 425, an input 430, and an output 435. Accordingto other embodiments, device 400 may include fewer components,additional components, different components, and/or a differentarrangement of components than those illustrated in FIG. 4 and describedherein.

Bus 405 includes a path that permits communication among the componentsof device 400. For example, bus 405 may include a system bus, an addressbus, a data bus, and/or a control bus. Bus 405 may also include busdrivers, bus arbiters, bus interfaces, clocks, and so forth.

Processor 410 includes one or multiple processors, microprocessors, dataprocessors, co-processors, graphics processing units (GPUs), applicationspecific integrated circuits (ASICs), controllers, programmable logicdevices, chipsets, field-programmable gate arrays (FPGAs), applicationspecific instruction-set processors (ASIPs), system-on-chips (SoCs),central processing units (CPUs) (e.g., one or multiple cores),microcontrollers, neural processing unit (NPUs), and/or some other typeof component that interprets and/or executes instructions and/or data.Processor 410 may be implemented as hardware (e.g., a microprocessor,etc.), a combination of hardware and software (e.g., a SoC, an ASIC,etc.), may include one or multiple memories (e.g., cache, etc.), etc.

Processor 410 may control the overall operation, or a portion ofoperation(s) performed by device 400. Processor 410 may perform one ormultiple operations based on an operating system and/or variousapplications or computer programs (e.g., software 420). Processor 410may access instructions from memory/storage 415, from other componentsof device 400, and/or from a source external to device 400 (e.g., anetwork, another device, etc.). Processor 410 may perform an operationand/or a process based on various techniques including, for example,multithreading, parallel processing, pipelining, interleaving, etc.

Memory/storage 415 includes one or multiple memories and/or one ormultiple other types of storage mediums. For example, memory/storage 415may include one or multiple types of memories, such as, a random accessmemory (RAM), a dynamic random access memory (DRAM), a static randomaccess memory (SRAM), a cache, a read only memory (ROM), a programmableread only memory (PROM), an erasable PROM (EPROM), an electrically EPROM(EEPROM), a single in-line memory module (SIMM), a dual in-line memorymodule (DIMM), a flash memory (e.g., 2D, 3D, NOR, NAND, etc.), a solidstate memory, and/or some other type of memory. Memory/storage 415 mayinclude a hard disk (e.g., a magnetic disk, an optical disk, amagneto-optic disk, a solid-state disk, etc.), a Micro-ElectromechanicalSystem (MEMS)-based storage medium, and/or a nanotechnology-basedstorage medium. Memory/storage 415 may include drives for reading fromand writing to the storage medium.

Memory/storage 415 may be external to and/or removable from device 400,such as, for example, a Universal Serial Bus (USB) memory stick, adongle, a hard disk, mass storage, off-line storage, or some other typeof storing medium (e.g., a compact disk (CD), a digital versatile disk(DVD), a Blu-Ray disk (BD), etc.). Memory/storage 415 may store data,software, and/or instructions related to the operation of device 400.

Software 420 includes an application or a program that provides afunction and/or a process. As an example, software 420 may include anapplication that, when executed by processor 410, provides a function ofthe application-aware scheduling service, as described herein. Software420 may also include firmware, middleware, microcode, hardwaredescription language (HDL), and/or other form of instruction. Software420 may also be virtualized. Software 420 may further include anoperating system (OS) (e.g., Windows, Linux, Android, proprietary,etc.).

Communication interface 425 permits device 400 to communicate with otherdevices, networks, systems, and/or the like. Communication interface 425includes one or multiple wireless interfaces and/or wired interfaces.For example, communication interface 425 may include one or multipletransmitters and receivers, or transceivers. Communication interface 425may operate according to a protocol stack and a communication standard.Communication interface 425 may include an antenna. Communicationinterface 425 may include various processing logic or circuitry (e.g.,multiplexing/de-multiplexing, filtering, amplifying, converting, errorcorrection, application programming interface (API), etc.).Communication interface 425 may be implemented as a point-to-pointinterface, a service-based interface, etc., as previously described.

Input 430 permits an input into device 400. For example, input 430 mayinclude a keyboard, a mouse, a display, a touchscreen, a touchlessscreen, a button, a switch, an input port, speech recognition logic,and/or some other type of visual, auditory, tactile, etc., inputcomponent. Output 435 permits an output from device 400. For example,output 435 may include a speaker, a display, a touchscreen, a touchlessscreen, a light, an output port, and/or some other type of visual,auditory, tactile, etc., output component.

As previously described, a network device may be implemented accordingto various computing architectures and according to various networkarchitectures (e.g., a virtualized function, etc.). Device 400 may beimplemented in the same manner. For example, device 400 may beinstantiated, created, deleted, or some other operational state duringits life-cycle (e.g., refreshed, paused, suspended, rebooting, oranother type of state or status), using well-known virtualizationtechnologies (e.g., hypervisor, container engine, virtual container,virtual machine, etc.) in a network.

Device 400 may perform a process and/or a function, as described herein,in response to processor 410 executing software 420 stored bymemory/storage 415. By way of example, instructions may be read intomemory/storage 415 from another memory/storage 415 (not shown) or readfrom another device (not shown) via communication interface 425. Theinstructions stored by memory/storage 415 cause processor 410 to performa process and/or a function, as described herein. Alternatively, forexample, according to other implementations, device 400 performs aprocess and/or a function as described herein based on the execution ofhardware (processor 410, etc.).

FIG. 5 is a flow diagram illustrating an exemplary process 500 of anexemplary embodiment of the application-aware scheduling service.According to an exemplary embodiment, a network device may perform stepsof process 500. For example, the network device may be access device110. According to an exemplary implementation, processor 410 executessoftware 420 to perform a step illustrated in FIG. 5 and describedherein. Alternatively, a step illustrated in FIG. 5 and describedherein, may be performed by execution of only hardware. According to anexemplary scenario, process 500 may pertain to end device 199 connectedto access device 110 via an air interface.

Referring to FIG. 5, in block 505, access device 110 may assign amaximum bandwidth for each end device 199, and application bandwidthsand usability parameters for applications, as described herein.According an exemplary embodiment, access device 110 may be provisionedwith parameters of the application-aware scheduling service, asdescribed herein.

In block 510, access device 110 may determine whether congestion oranticipated congestion is present. For example, access device 110 mayidentify or determine a current or anticipated load.

When access device 110 determines that there is no congestion (block510—NO), access device 110 may return to block 510. Additionally, oralternatively, access device 110 may enforce the maximum bandwidth foreach end device 199.

When access device 110 determines that there is congestion (block510—YES), access device 110 may perform packet inspection for traffic ofan end device 199 (block 515). Access device 110 may identify traffic ofone or multiple applications associated with end device 199. Forexample, access device 110 may search one or more queues or buffers thatstore packets.

In block 520, access device 110 may determine whether the applicationbandwidth is satisfied. For example, access device 110 may compare theassigned bandwidth of the application to the amount of data of thepackets identified for the application.

When access device 110 determines that the application bandwidth issatisfied (block 520—YES), process 500 may return to block 510. Whenaccess device 110 determines that the application bandwidth is notsatisfied (block 520—NO), access device 110 may do one of two thingsdepending on whether the bandwidth of the inspected traffic is above theapplication bandwidth or below the application bandwidth. Asillustrated, when the bandwidth is below the application bandwidth,access device 110 may determine whether the usability flag is satisfied(block 525). For example, the usability flag may indicate whether theapplication may effectively perform when a bandwidth is below theapplication bandwidth, as described herein. When the usability flagindicates that the application may effectively perform (block 525—YES),access device 110 may schedule the packets (block 530). For example,access device 110 may schedule the packets for transmission. When theusability flag may indicate that the application may not effectivelyperform (block 525—NO), access device 110 may drop packets of theapplication (block 535). For example, access device 110 may drop all ofthe packets. When the bandwidth is above the application bandwidth,according to various exemplary implementation, access device 110 maydrop some or all of the packets (block 535). According to some exemplaryimplementations, access device 110 may drop a number of packets so thatthe application bandwidth is satisfied.

FIG. 5 illustrates an exemplary process 500 of the application-awarescheduling service, however, according to other embodiments, process 500may include additional operations, fewer operations, and/or differentoperations than those illustrated in FIG. 5 and described herein. Forexample, process 500 may omit block 510, or blocks 515-530 may not bedependent upon congestion being detected.

FIG. 6 is a flow diagram illustrating another exemplary process 600 ofan exemplary embodiment of the application-aware scheduling service.According to an exemplary embodiment, a network device may perform stepsof process 600. For example, the network device may be access device110. According to an exemplary implementation, processor 410 executessoftware 420 to perform a step illustrated in FIG. 6 and describedherein. Alternatively, a step illustrated in FIG. 6 and describedherein, may be performed by execution of only hardware.

Referring to FIG. 6, in block 605, access device 110 may assign amaximum bandwidth for an application that applies to all end devices 199serviced by access device 110, as described herein. According anexemplary embodiment, access device 110 may be provisioned withparameters of the application-aware scheduling service, as describedherein.

In block 610, access device 110 may determine whether congestion oranticipated congestion is present. For example, access device 110 mayidentify or determine a current or anticipated load.

When access device 110 determines that there is no congestion (block610—NO), access device 110 may return to block 610. Additionally, oralternatively, in some exemplary embodiments, access device 110 mayenforce a maximum bandwidth for each end device 199.

When access device 110 determines that there is congestion (block610—YES), access device 110 may perform packet inspection for traffic ofan end device 199 (block 615). Access device 110 may identify traffic ofone or multiple applications associated with end device 199. Forexample, access device 110 may search one or more queues or buffers thatstore packets.

In block 620, access device 110 may determine whether the maximumbandwidth for the application is satisfied. For example, access device110 may compare the maximum bandwidth of the application (e.g., storedapplication-aware service data) to the amount of data of the packetsidentified for the application.

When access device 110 determines that the maximum bandwidth issatisfied (block 620—YES), access device 110 may schedule the packets(block 625). For example, access device 110 may schedule the packets fortransmission. When access device 110 determines that the maximumbandwidth is not satisfied (block 620—NO), access device 110 may droppackets of the application traffic (block 630). For example, when theamount of data of the identified packets are above the maximumbandwidth, access device 110 may drop all of the packets or a portion ofthe packets so that the amount of data is commensurate to the maximumbandwidth.

FIG. 6 illustrates an exemplary process 600 of the application-awarescheduling service, however, according to other embodiments, process 600may include additional operations, fewer operations, and/or differentoperations than those illustrated in FIG. 6 and described herein. Forexample, process 600 may omit block 610, or blocks 615-625 may not bedependent upon congestion being detected.

FIG. 7 is a flow diagram illustrating yet another exemplary process 700of an exemplary embodiment of the application-aware scheduling service.According to an exemplary embodiment, a network device may perform stepsof process 700. For example, the network device may be access device110. According to an exemplary implementation, processor 410 executessoftware 420 to perform a step illustrated in FIG. 7 and describedherein. Alternatively, a step illustrated in FIG. 7 and describedherein, may be performed by execution of only hardware.

According to an exemplary embodiment, process 700 may include acombination of processes 500 and 600, as described herein. For example,x % of a capacity of access device 110 may be associated with a firstapplication-aware scheduling service (e.g., process 500) and a remainingcapacity (e.g., 100−x) % may be associated with a secondapplication-aware scheduling service (e.g., process 600). As an example,some end devices 199 connected to access device 110 may be subscribed tothe first application-aware scheduling service and other end devices 199connected to access device 110 may be subscribed to the secondapplication-aware scheduling service. According to an exemplaryembodiment, applications of end devices 199 subscribed to the firstservice may not count towards the capacity allocated for the secondservice. According an exemplary embodiment, access device 110 may beprovisioned with parameters of the application-aware scheduling service,as described herein.

Referring to FIG. 7, in block 705, access device 705 may assign amaximum bandwidth for each end device of a first service and applicationbandwidths and usability parameters for application. In block 710,access device 705 may assign maximum bandwidths for applications of asecond service based on a remaining capacity of the wireless station.

In block 715, access device 110 may determine whether congestion oranticipated congestion is present. For example, access device 110 mayidentify or determine a current or anticipated load.

When access device 110 determines that there is no congestion (block715—NO), access device 110 may return to block 710. Additionally, oralternatively, in some exemplary embodiments, access device 110 mayenforce a maximum bandwidth for end device 199 of the first service.

When access device 110 determines that there is congestion (block715—YES), access device 110 may select an end device 199 for schedulingenforcement (block 720). In block 725, access device 110 may determinewhether the selected end device 199 is of the first service or thesecond service. When access device 110 determines that end device 199 isof the first service (block 725—YES), process 700 may continue startingat block 515 of process 500, as described herein. When access device 110determines that end device 199 is of the second service (block 725—NO),process 700 may continue starting at block 615 of process 600, asdescribed herein.

FIG. 7 illustrates an exemplary process 700 of the application-awarescheduling service, however, according to other embodiments, process 700may include additional operations, fewer operations, and/or differentoperations than those illustrated in FIG. 7 and described herein. Forexample, process 700 may omit block 715, or block 720 and other blocksmay not be dependent upon congestion being detected.

As set forth in this description and illustrated by the drawings,reference is made to “an exemplary embodiment,” “an embodiment,”“embodiments,” etc., which may include a particular feature, structureor characteristic in connection with an embodiment(s). However, the useof the phrase or term “an embodiment,” “embodiments,” etc., in variousplaces in the specification does not necessarily refer to allembodiments described, nor does it necessarily refer to the sameembodiment, nor are separate or alternative embodiments necessarilymutually exclusive of other embodiment(s). The same applies to the term“implementation,” “implementations,” etc.

The foregoing description of embodiments provides illustration but isnot intended to be exhaustive or to limit the embodiments to the preciseform disclosed. Accordingly, modifications to the embodiments describedherein may be possible. For example, various modifications and changesmay be made thereto, and additional embodiments may be implemented,without departing from the broader scope of the invention as set forthin the claims that follow. The description and drawings are accordinglyto be regarded as illustrative rather than restrictive.

The terms “a,” “an,” and “the” are intended to be interpreted to includeone or more items. Further, the phrase “based on” is intended to beinterpreted as “based, at least in part, on,” unless explicitly statedotherwise. The term “and/or” is intended to be interpreted to includeany and all combinations of one or more of the associated items. Theword “exemplary” is used herein to mean “serving as an example.” Anyembodiment or implementation described as “exemplary” is not necessarilyto be construed as preferred or advantageous over other embodiments orimplementations.

In addition, while series of blocks have been described regarding theprocesses illustrated in FIGS. 5, 6, and 7, the order of the blocks maybe modified according to other embodiments. Further, non-dependentblocks may be performed in parallel. Additionally, other processesdescribed in this description may be modified and/or non-dependentoperations may be performed in parallel.

Embodiments described herein may be implemented in many different formsof software executed by hardware. For example, a process or a functionmay be implemented as “logic,” a “component,” or an “element.” Thelogic, the component, or the element, may include, for example, hardware(e.g., processor 410, etc.), or a combination of hardware and software(e.g., software 420).

Embodiments have been described without reference to the specificsoftware code because the software code can be designed to implement theembodiments based on the description herein and commercially availablesoftware design environments and/or languages. For example, varioustypes of programming languages including, for example, a compiledlanguage, an interpreted language, a declarative language, or aprocedural language may be implemented.

Use of ordinal terms such as “first,” “second,” “third,” etc., in theclaims to modify a claim element does not by itself connote anypriority, precedence, or order of one claim element over another, thetemporal order in which acts of a method are performed, the temporalorder in which instructions executed by a device are performed, etc.,but are used merely as labels to distinguish one claim element having acertain name from another element having a same name (but for use of theordinal term) to distinguish the claim elements.

Additionally, embodiments described herein may be implemented as anon-transitory computer-readable storage medium that stores data and/orinformation, such as instructions, program code, a data structure, aprogram module, an application, a script, or other known or conventionalform suitable for use in a computing environment. The program code,instructions, application, etc., is readable and executable by aprocessor (e.g., processor 410) of a device. A non-transitory storagemedium includes one or more of the storage mediums described in relationto memory/storage 415. The non-transitory computer-readable storagemedium may be implemented in a centralized, distributed, or logicaldivision that may include a single physical memory device or multiplephysical memory devices spread across one or multiple network devices.

To the extent the aforementioned embodiments collect, store or employpersonal information of individuals, such information shall becollected, stored, and used in accordance with all applicable lawsconcerning protection of personal information. Additionally, thecollection, storage and use of such information can be subject toconsent of the individual to such activity, for example, through wellknown “opt-in” or “opt-out” processes as can be appropriate for thesituation and type of information. Collection, storage and use ofpersonal information can be in an appropriately secure manner reflectiveof the type of information, for example, through various encryption andanonymization techniques for particularly sensitive information.

No element, act, or instruction set forth in this description should beconstrued as critical or essential to the embodiments described hereinunless explicitly indicated as such.

All structural and functional equivalents to the elements of the variousaspects set forth in this disclosure that are known or later come to beknown are expressly incorporated herein by reference and are intended tobe encompassed by the claims.

What is claimed is:
 1. A method comprising: storing, by a wirelessstation of a radio access network prior to an establishment of anapplication session of an application for an end device, data includinga maximum bandwidth for the end device, an application bandwidth for theapplication, and a parameter indicating whether a first bandwidth thatis below the application bandwidth is permitted during the applicationsession of the application; performing, by the wireless station of aradio access network during the application session with the end device,packet inspection for traffic of the application associated with the enddevice connected to the wireless station; determining, by the wirelessstation based on the performing, whether the application bandwidth forthe application is satisfied; determining, by the wireless station whenthe application bandwidth is not satisfied, whether the first bandwidthbelow the application bandwidth is permitted based on the parameter;dropping, by the wireless station when the first bandwidth is notpermitted, the inspected traffic; and scheduling, by the wirelessstation when the first bandwidth is permitted, the inspected traffic fortransmission.
 2. The method of claim 1, wherein the wireless station isan evolved Node B or a next generation Node B, and wherein theapplication bandwidth indicates a maximum allowable bandwidth to beallocated for the application for all end devices including the enddevice.
 3. The method of claim 1, further comprising: determining, bythe wireless station, that there is congestion, and wherein theperforming comprises: performing, by the wireless station in response todetermining the congestion, the packet inspection for traffic of theapplication associated with the end device connected to the wirelessstation.
 4. The method of claim 1, further comprising: enforcing, by thewireless station, the maximum bandwidth for the end device, wherein themaximum bandwidth pertains to guaranteed bit rate (GBR) bearers andnon-GBR bearers.
 5. The method of claim 1, wherein the performingcomprises: identifying, by the wireless station, at least two of anapplication protocol, an application source port number, a transportprotocol, or an Internet Protocol address relating to the inspectedtraffic; and determining, by the wireless station based on theidentifying, the application.
 6. The method of claim 1, wherein theapplication bandwidth includes multiple application bandwidthspertaining to multiple applications, and a total of the multipleapplication bandwidths exceeds a maximum capacity of bandwidth for thewireless station.
 7. The method of claim 1, wherein the applicationbandwidth indicates a bandwidth value that provides a minimum grade ofservice for the application.
 8. The method of claim 1, whereindetermining whether the application bandwidth for the application issatisfied further comprises: comparing, by the wireless station, theapplication bandwidth to a bandwidth associated with the inspectedtraffic.
 9. A network device comprising: a processor configured to:store prior to an establishment of an application session of anapplication for an end device, data including a maximum bandwidth forthe end device, an application bandwidth for the application, and aparameter indicating whether a first bandwidth that is below theapplication bandwidth is permitted during the application session of theapplication, wherein the network device is a wireless station of a radioaccess network; perform during the application session with the enddevice, packet inspection for traffic of the application associated withthe end device connected to the network device, wherein the networkdevice is a wireless station of a radio access network; determinewhether the application bandwidth for the application is satisfied;determine, when the application bandwidth is not satisfied, whether thefirst bandwidth below the application bandwidth is permitted based onthe parameter; drop, when the first bandwidth is not permitted, theinspected traffic; and schedule, when the first bandwidth is permitted,the inspected traffic for transmission.
 10. The network device of claim9, wherein the wireless station is an evolved Node B or a nextgeneration Node B, and wherein the application bandwidth indicates amaximum allowable bandwidth to be allocated for the application for allend devices including the end device.
 11. The network device of claim 9,wherein the processor is further configured to: determine that there iscongestion, and wherein, when performing, the processor is furtherconfigured to: perform, in response to a determination of congestion,the packet inspection for traffic of the application associated with theend device connected to the wireless station.
 12. The network device ofclaim 9, wherein the processor is further configured to: enforce, themaximum bandwidth for the end device, wherein the maximum bandwidthpertains to guaranteed bit rate (GBR) bearers and non-GBR bearers. 13.The network device of claim 9, when performing, the processor is furtherconfigured to: identify at least two of an application protocol, anapplication source port number, a transport protocol, or an InternetProtocol address relating to the inspected traffic; and determine, basedon the identification, the application.
 14. The network device of claim9, wherein the application bandwidth includes multiple applicationbandwidths pertaining to multiple applications, and a total of themultiple application bandwidths exceeds the maximum bandwidth.
 15. Thenetwork device of claim 9, wherein the application bandwidth indicates abandwidth value that provides a minimum grade of service for theapplication.
 16. The network device of claim 9, wherein, whendetermining whether the application bandwidth for the application issatisfied, the processor is further configured to: compare theapplication bandwidth to a bandwidth associated with the inspectedpackets.
 17. A non-transitory computer-readable storage medium storinginstructions executable by a processor of a wireless station of a radioaccess network, which when executed cause the network device to: storeprior to an establishment of an application session of an applicationfor an end device, data including a maximum bandwidth for the enddevice, an application bandwidth for the application, and a parameterindicating whether a first bandwidth that is below the applicationbandwidth is permitted during the application session of theapplication, wherein the network device is a wireless station of a radioaccess network; perform during the application session with the enddevice, packet inspection for traffic of the application associated withthe end device connected to the network device, wherein the networkdevice is a wireless station of a radio access network; determinewhether the application bandwidth for the application is satisfied;determine, when the application bandwidth is not satisfied, whether thefirst bandwidth below the application bandwidth is permitted based onthe parameter; drop, when the first bandwidth is not permitted, theinspected traffic; and schedule, when the first bandwidth is permitted,the inspected traffic for transmission.
 18. The non-transitorycomputer-readable storage medium of claim 17, wherein the wirelessstation is an evolved Node B or a next generation Node B, and whereinthe application bandwidth indicates a maximum allowable bandwidth to beallocated for the application for all end devices including the enddevice.
 19. The non-transitory computer-readable storage medium of claim17, wherein the instructions further comprise instructions, which whenexecuted cause the wireless station to: enforce, a maximum bandwidth forthe end device, wherein the maximum bandwidth pertains to guaranteed bitrate (GBR) bearers and non-GBR bearers.
 20. The non-transitorycomputer-readable storage medium of claim 17, wherein the instructionsto determine whether the application bandwidth for the application issatisfied further comprise instructions, which when executed cause thewireless station to: compare the application bandwidth to a bandwidthassociated with the inspected packets.